Removal of safranin dye from wastewater using khulays natural bentonite
Other Title(s)
إزالة صبغة السفرانين من مياه الصرف باستخدام بنتونايت خليص الطبيعي
Author
Source
Journal of King Abdulaziz University : Engineering Sciences
Issue
Vol. 29, Issue 1 (30 Jun. 2018), pp.49-58, 10 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
2018-06-30
Country of Publication
Saudi Arabia
No. of Pages
10
Main Subjects
Abstract EN
Khulays natural bentonite as low-cost adsorbent was investigated to be used to remove safranin dye from wastewater.
The removal process was studied using batch adsorption experiments.
The effect of different parameters on the adsorption process was investigated including contact time, initial safranin dye concentration, initial solution pH and Khulays natural bentonite dosage.
Adsorption isotherms were applied to estimate the equilibrium characteristics of the adsorption process, evaluate the applicability of the process and suggest the appropriate design for the adsorption system.
Adsorption kinetics were investigated using pseudo-first-order model and pseudo-second-order model to fit the experimental data.
The results revealed that the adsorption process achieved equilibrium after 80 minutes.
The removal process is initial solution pH dependent where the removal percentage of safranin dye gradually increased as the initial safranin dye solution pH increased.
They also showed that as the initial safranin dye concentration increased the removal percentage decreased because of limited active sites on bentonite surfaces which consequently saturated with safranin dye.
The experimental data was well fitted with Langmuir model more than with Freundlich model and the maximum adsorption capacity was equal to 294.1 mg/g.
Moreover, the experimental results showed that the adsorption of safranin dye onto Khulays natural bentonite followed pseudo second-order model.
American Psychological Association (APA)
al-Shahrani, Sad Said. 2018. Removal of safranin dye from wastewater using khulays natural bentonite. Journal of King Abdulaziz University : Engineering Sciences،Vol. 29, no. 1, pp.49-58.
https://search.emarefa.net/detail/BIM-896748
Modern Language Association (MLA)
al-Shahrani, Sad Said. Removal of safranin dye from wastewater using khulays natural bentonite. Journal of King Abdulaziz University : Engineering Sciences Vol. 29, no. 1 (2018), pp.49-58.
https://search.emarefa.net/detail/BIM-896748
American Medical Association (AMA)
al-Shahrani, Sad Said. Removal of safranin dye from wastewater using khulays natural bentonite. Journal of King Abdulaziz University : Engineering Sciences. 2018. Vol. 29, no. 1, pp.49-58.
https://search.emarefa.net/detail/BIM-896748
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 56-57
Record ID
BIM-896748